Delphi remove shadow form

Question

I use delphi berlin, I have a main form, and I open other forms from the main menu in my main form, I do not use MDI forms

I want to disable the form shadow for child forms (which I open from the menu in the main form, so I call them child forms, but they are not MDI children)

Is it possible to disable / remove the shadow from the form / forms that I choose to remove / disable the shadow.

I found and tried to remove the shadows using the APIs, but then I realized what he did to disable the shadows in all windows that are not useful to me, I want to remove / hide the shadow from the forms I selected in my application

thanks